I am planning to build websites for my franchise business: one "main" website and 30 "microsites" for franchise branches.
In terms of search engine optimization, is it better for franchise branches to become sub-domains of the company's "main" website or have independent domains of their own?
Another question I have is, if all my websites are hosted by one server, would this affect their PageRank negatively?
Google seems to want a variety of sources to provide information, so wouldn't originating from one server might not look good to Google?
I am just beginning to learn about sitebuiding, so I look forward to having all your kind feedbacks. Thanks!